oss-sec mailing list archives
Re: CVE request: Python HTTP header injection in urrlib2/urllib/httplib/http.client
From: Cedric Buissart <cbuissar () redhat com>
Date: Fri, 17 Jun 2016 11:22:32 +0200
Hi Tim, On Wed, Jun 15, 2016 at 6:54 PM, Tim <tim-security () sentinelchicken org> wrote:
Here are the additional details I promised: http://blog.blindspotsecurity.com/2016/06/advisory-http-header-injection-in.html The gist of it is that protocol injection can occur not only if an application sets a header based on user-supplied values, but also if the application ever tries to fetch a URL specified by an attacker (SSRF case) OR if the application ever accesses any malicious web server (redirection case). URLs of the following form allow injection into the HTTP stream: http://127.0.0.1%0d%0aX-injected:%20header%0d%0ax-leftover:%20:12345/foo http://localhost%00%0d%0ax-bar:%20:12345/foo More details in the blog post, of course.
Thanks for details! The glibc side of the issue has its own upstream bug entry: https://sourceware.org/bugzilla/show_bug.cgi?id=20018
Best regards, tim
-- Cedric Buissart, Product Security Purkynova 111 Brno 612 45 Czech Republic
Current thread:
- CVE request: Python HTTP header injection in urrlib2/urllib/httplib/http.client Cedric Buissart (Jun 14)
- Re: CVE request: Python HTTP header injection in urrlib2/urllib/httplib/http.client Tim (Jun 14)
- Re: CVE request: Python HTTP header injection in urrlib2/urllib/httplib/http.client Cedric Buissart (Jun 15)
- Re: CVE request: Python HTTP header injection in urrlib2/urllib/httplib/http.client Tim (Jun 15)
- Re: CVE request: Python HTTP header injection in urrlib2/urllib/httplib/http.client Cedric Buissart (Jun 17)
- Re: CVE request: Python HTTP header injection in urrlib2/urllib/httplib/http.client Marcus Meissner (Jun 23)
- Re: CVE request: Python HTTP header injection in urrlib2/urllib/httplib/http.client cve-assign (Jun 23)
- Re: CVE request: Python HTTP header injection in urrlib2/urllib/httplib/http.client Cedric Buissart (Jun 15)
- Re: CVE request: Python HTTP header injection in urrlib2/urllib/httplib/http.client Tim (Jun 14)